47. COMPOSITACEJE. 
419 
than the inner, the latter scarious erect. FI. all perfect 
and tubular or a single row of the marginal neuter and 
ligulate. Ach. linear attenuated at each end quadran- 
gular scarcely or not obcompressed strongly ribbed with a 
short oblique pale disk -like foot or podocarp at the base 
and 2 or 3 retrorsally spinulose awns at top. Recept. sub- 
convex alveolate clothed with long chaffy scales. — Rank 
ann. scentless herbs or weeds. L. opposite. FI. with or 
without ray ; ray w. 
tfTribe XII. ECLIPTEJE. 
Heads heterogamous ; fl. of margin female ligulate, of .disk 
perfect tubular regular. Anthers ecaudate notched at the base, 
lobes acute. Ach. obcompressed dissimilar , of margin trique- 
trous, of disk 4-angular ; pappus 0 or obsolete. — Herbs with 
opposite 1. 
tf21. Eclipta. Inv. hemispherical or saucer-shaped, scales 
few (10-12) in two rows all ovate acute leafy erect or ad- 
pressed imbricate. Fl, of margin in one row shortly and 
narrowly ligulate, of disk 4-toothed. Ach. of ray trique- 
trous smooth and even, of disk subquadra ngular tubercu- 
late or corrugate without pappus but obsoletely margin u- 
late at top. Recept. subconvex with linear-filiform chaffs. 
— Tropical rough or strigose subaquatic herbs with opposite 
simple 1., used for dying black. Fl. w. inconspicuously 
radiant. Heads solitary on 1-3 axillary ped. 
§ 2. Anthers caudate or awnccl at the base. 
A. Recept. scaly or chaffy all over. 
Tribe XIII. B UPH TIIALMEAE. 
Heads heterogamous radiate. Fl. of margin female ligulate, 
>f disk perfect tubular regular. Anthers caudate. Branches 
of style linear compressed rounded and pubescent at top. Ach. 
dimorphous, the marginal triquetrous, the rest obconic with a 
ventral keel, all crowned with a torn membranous pappus. — Fl. 
radiant y. L. alternate simple. Herbs or shr. 
22. Asteriscus. Inv. hemispherical umbilicate ; scales im- 
bricate in many rows, the outer larger leafy spreading 
radiately, inner coriaceous at least at base, adpressed. 
Fl. of margin numerous in 1-2 rows ligulate, their tube 
triquetrous. Anthers with long awns at their base. Ach. 
of ray larger triquetrous, of disk oblong-conic keeled in- 
